Home / 71,148.84-98,184.18-39,319.08

Finding the Fourth Proportional to 71,148.84, 98,184.18 and 39,319.08

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Solution

The fourth proportional to 71,148.84, 98,184.18 and 39,319.08 is: 54,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,148.84 : 98,184.18 = 39,319.08 : x
  2. Step 2: Convert to fraction form
    71,148.84/98,184.18 = 39,319.08/x
  3. Step 3: Cross multiply
    71,148.84x = 98,184.18 × 39,319.08
  4. Step 4: Simplify right side
    71,148.84x = 3,860,511,628.15
  5. Step 5: Solve for x
    x = 3,860,511,628.15/71,148.84
  6. Step 6: Final answer
    x = 54,259.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.